Author/Authors :
Hatanaka، نويسنده , , Koji and Itoh، نويسنده , , Tamitake and Asahi، نويسنده , , Tsuyoshi and Ichinose، نويسنده , , Nobuyuki and Kawanishi، نويسنده , , Shunichi and Sasuga، نويسنده , , Tsuneo and Fukumura، نويسنده , , Hiroshi and Masuhara، نويسنده , , Hiroshi، نويسنده ,
Abstract :
A time-resolved absorption spectroscopy system with an intense femtosecond KrF laser has been constructed and applied to liquid benzyl chloride under conditions of laser ablation. It has been directly confirmed over a wide fluence range that benzyl radical was formed immediately after excitation. In addition to the decay of benzyl radical, scattering of a probe light pulse was observed after ∼1–2 ns at higher fluences, which was ascribed to morphological changes; the threshold was determined to be 30 mJ cm−2. The femtosecond KrF laser ablation molecular dynamics of liquid benzyl chloride is well explained in terms of a photochemical mechanism.
